Sealing ability of cements in root canals prepared for intraradicular posts

Nakamura, Dirce Haruko; Garcia, Roberto Brandão; Bramante, Clóvis Monteiro; Moraes, Ivaldo Gomes de; Bernadineli, Norberti

doi:10.1590/s1678-77572006000400002

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…Adequate root fillings are associated with a lower prevalence of periapical disease 5 . However, high-quality root fillings do not prevent the penetration of bacteria and their byproducts when coronal restorations are not adequate 15 . Moreover, radiographs alone do not provide a complete evaluation of the efficiency of root canal cleaning, which is fundamental for treatment success 2 , 26 .…”

Section: Introductionmentioning

confidence: 99%

Interference of partial visual analysis of root filling quality and apical status on retreatment decisions

et al. 2012

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Objective The presence of periapical radiolucency has been used as a criterion for endodontic treatment failure. However, in addition to the inherent limitations of radiographic examinations, radiographic interpretations are extremely subjective. Thus, this study investigated the effect of partial analysis of root filling quality and periapical status on retreatment decisions by general dentists. Material and Methods Twelve digitalized periapical radiographs were analyzed by 10 observers. The study was conducted at three time points at 1-week intervals. Radiographs edited with the Adobe Photoshop CS4 software were analyzed at three time points: first, only root filling quality was analyzed; second, only the periapical areas of the teeth under study were visualized; finally, observers analyzed the unedited radiographic image. Spearman's coefficient was used to analyze the correlations between the scores assigned when the periapical area was not visible and when the unedited radiograph was analyzed, as well as between the scores assigned when root fillings where not visible and when the unedited radiograph was analyzed. Sensitivity, specificity, positive and negative predictive values between partial images and unedited radiographs were also used to analyze retreatment decisions. The level of significance was set at 5%. Results The visualization of the root filling on the unedited radiograph affected the interpretation of the periapical status and the technical quality of the fillings has a greater influence on the general dentist's decision to prescribe endodontic retreatment than the periapical condition. Conclusion In order to make endodontic diagnosis, radiographic interpretation process should not only emphasize technical aspects, but also consider biological factors.

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Section: Introductionmentioning

confidence: 99%

Interference of partial visual analysis of root filling quality and apical status on retreatment decisions

et al. 2012

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Influence of different obturation techniques in coronal bacterial infiltration: study in dogs

Dezan

Bueno

Vasques

et al. 2021

RSD

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The objective of this study was to evaluate, in vivo, coronal bacterial infiltration after endodontic treatment with different obturation technique. Forty-five dogs’ root canals, originated from incisors and premolars, were used. The animals were intubated after general anesthesia. After local antisepsis and placement of rubber dam isolation, teeth were opened and instrumented up to a Kerr handfile #40, followed by three obturation protocols with Endofill®: Lateral condensation, Lateral condensation with a coronal plug of set Endofill® and Tagger hybrid technique. Access openings were not sealed and root fillings remained exposed to oral environment for 90 days. After this period, animals were euthanized and specimens were histologically processed and stained with Brown and Brenn. Dentinal tubules were evaluated with presence or absence of bacteria descriptive analysis. Bacterial infiltration was identified on root canal walls in six out of 14 root canals filled with the lateral condensation technique (42,8%), two out of 15 canals filled with Lateral condensation with a plug of set Endofill® (13,3%) and in two out 13 root canals filled with the Tagger hybrid technique (15,3%). Although the use of a coronal plug or a thermomechanical compaction technique showed less bacterial infiltration than conventional lateral condensation, none of the obturation techniques prevented bacterial infiltration to periapical area, evidencing the importance of a proper coronal seal or final restoration.

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Sealing ability of cements in root canals prepared for intraradicular posts

Cited by 2 publications

References 7 publications

Interference of partial visual analysis of root filling quality and apical status on retreatment decisions

Interference of partial visual analysis of root filling quality and apical status on retreatment decisions

Influence of different obturation techniques in coronal bacterial infiltration: study in dogs

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